Members of this family include the mamalian mitoribosomal proteins mL52 which is found in the 39S subunit. The mL52 has no homologues in yeast [1 , 2].

1: Structure of the large ribosomal subunit from human mitochondria. Brown A, Amunts A, Bai XC, Sugimoto Y, Edwards PC, Murshudov G, Scheres SHW, Ramakrishnan V; Science. 2014;346:718-722. PMID:25278503

2: The complete structure of the large subunit of the mammalian mitochondrial ribosome. Greber BJ, Boehringer D, Leibundgut M, Bieri P, Leitner A, Schmitz N, Aebersold R, Ban N; Nature. 2014;515:283-286. PMID:25271403